21515677780

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1367}}^1\times {\mathrm{3529}}^1$

素因数の和:5128

約数の個数: 48

約数和(自身を含む): 45431608320

約数和(自身を除く): 23915930540

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 1367, 2230, 2734, 3529, 4460, 5468, 6835, 7058, 13670, 14116, 17645, 27340, 35290, 70580, 304841, 609682, 786967, 1219364, 1524205, 1573934, 3048410, 3147868, 3934835, 4824143, 6096820, 7869670, 9648286, 15739340, 19296572, 24120715, 48241430, 96482860, 1075783889, 2151567778, 4303135556, 5378919445, 10757838890, 21515677780]

約数ペア:

[(1, 21515677780), (2, 10757838890), (4, 5378919445), (5, 4303135556), (10, 2151567778), (20, 1075783889), (223, 96482860), (446, 48241430), (892, 24120715), (1115, 19296572), (1367, 15739340), (2230, 9648286), (2734, 7869670), (3529, 6096820), (4460, 4824143), (5468, 3934835), (6835, 3147868), (7058, 3048410), (13670, 1573934), (14116, 1524205), (17645, 1219364), (27340, 786967), (35290, 609682), (70580, 304841)]